I know the picture is not great. But in the middle is a queen being balled. Not in attempts to kill her, but in attempts to protect her. I had shaken out another observation hive in front of this observation hive earlier in the day. The O.B. that was shaken out, was from another location. So the bees only really knew nothing more than the same type entrance, and went into this O.B. hive. A short time later, the queen was being protected by her own bees as they knew foreign bees were in the hive. It was amazing how tight the balling protective cluster was. They would let no outside bee near her. Surprisingly, very few bees actually fought. After about 24 hours, the balling stopped, and the queen went about her business. And the bees are all happy. BTW....are there any tricks of taking a picture through glass so you don't get glare and "ghosts"?